This portable night sky guide is a handy and helpful way to identify nearly 1500 stars (up to magnitude 5) and 70 major constellations. Includes four selector discs (stored in cap) for latitudes between 20° and 60° (inclusive). Simply locate the latitude of your region on the chart and insert the appropriate disc. Align the date and time on the ring. Look through the eyepiece and match your findings to the sky. Night-friendly red light illuminates information.

Size
6"L x 1-1/2"Dia.